Improvement in foot trip-hammers



to the bottom of said post.

`UNITED STATES PATENT OFFICE.

CASPER V. STATLER AND GEORGE lV. WILSON, OF VALNUT GROVE, ILLINOIS.

EMPROVEMENT IN FOOT TRIP-HAMMERS.

Specification forming part of Letters Patent No. 22,589, dated January 1l, 1859.

the annexed drawings, making part of this specification, in which Figure l represents a side elevation of our trip-hammer, and Fig. 2 is a front elevation of the same.

Similar letters in the two figures refer to corresponding parts of our invention.

Our invention consists in arranging a hammer by means of a series of levers in such relation to an anvil that the same can be operated either by foot or by hand, and that it can be brought to strike with considerable force on a bar of iron placed on the anvil, or on a chisel or on a swage, which is attached to a swinging lever, the fulcrum of which is in a forked standard, which lits into the hardyhole, and which lever is connected to thelever arrangement by which the hammer is operated in such a manner that the cold-chisel or swage is raised or lowered bythe same motion by which the hammer is operated, and that the same can be adjusted to different thicknesses of iron, so that one man is able to do prei ty near all the forging without help.

To enable others skilled in. the art to fully understand and construct our trip-hammer,V

we will proceed to describe the same.

In a post A, which is firmly secured in the ground or to the oor, hangs the hammer B, the end of the hammer-handle Obeing pivoted to the post by means of a pivot c. The handle extends a short distance beyond the post A, and it is connected by means of two links D D to two levers E and F, which are pivoted to the post A, the lever E having its fulcrum near to the top and the lever E near The inner end of the lever E connects with the lever F by means of rods G G, which serve to guide the handle of. the hammer and to keep the same in the proper direction. The lever E extends through a slot b in ablock H, in which an anvil l is placed in such a situation that the hammer when it descends strikes right on. the

middle of the anvil. The front end of the lever F is provided with a hook c, and two footlevers J J are connected to this hook, the ends of which are pivoted tostandards d d, so that by depressing the foot-levers J J the lever F is depressed at the same time, and a spring K is arranged under thelever F in such a manner that the lever is forced up by the action of the spring.

L is a hand-lever, which has its fulcrum in a standard e, and which is bent over one of the foot-levers J, so that by pulling the handlever in the direction of arrow l, Fig. l, the foot-lever is depressed, and a short two-armed lever M is attached to a standard f in such a position that one of its arms rests'on the bent part L of the hand-lever L, while its other arln connects with the end of the handle N of the cold-chisel O by means of a rod g, the length of` which rod is adjustable by means of a screw-ferrule 71.. The handle N of the chisel is pivoted to a small forked standard 7i', which fits into the hardy-hole of the anvil. By pushing the hand-lever L in the direction of arrow 2 the end of the handle N is depressed by means of the lever M and the rod g and the chisel is raised.

The operation is as follows: In order to cut a bar of iron, which is represented in red outlines in Fig. 2, the hand-lever L is first moved in the direction of arrow 2, so that the chisel is raised and the. bar may be brought under the cutting-edge and to the required position.

If the end of the hand-lever Lis now brought forward suddenly in the direction of arrow 1 the lever E is depressed, and the extension of hammer-handle is forced up by the action of the levers F and E and the links D D, and the hammer is brought down on the head of the chisel with a powerful blow, the force of which may be increased by lengthening the handle C of the hammer. By releasing the handlever L the lever F is forced back to its original position by the action of the spring K, and the hammer is raised up again as quick as the hand relaxes, so that the blows may be repeated as often as the occasion may require.

of the common hand-hammer is not sufficient.

In this case the hammer B is brought down by means of one of the footflevers J, one of which is operated by the left and the other one by the right foot, as the convenience of the operator may direct. It Will be seen that the blacksmith is thus enabled to go on With his Work as usual, holding the iron Which is to be forged in one hand and the common hand-hammer in the other one, and if he requires heavy .blow-she has the same at hisown disposition.

Having thus described our inventiomwv'hat l We `claim .as new, and desire to secure by Letters Patent, is-

1.. Arranging a hammer B in such relation to an anvil I, by means of levers E and F and links D D, that the same can be .operated by means of a hand-lever L or by foot-levers J J,

o substantially as herein described.

2. The arrangement of the hand-lever L in such relation to the foot-levers J and to the chisel fO that both the hammer B and the chisel O may be operated by the motion of the hand-lever, in the manner and for the purpose substantially as specified.

3. In combination with the above-describedV hammer connecting the handle Nof the chisel with the arm M by means of an adjustable rod g, so that the cuttingeedgel of the chisel may be accommodated to dierent thicknesses of iron, substantially as herein :set forth.

CASPER v. srATLER. Groer; W. tv-iLso-N.

Mitnesses HIRAM ALL-EN, R. M. FERGUSON. 

